Table Of Content

ASME B31.3-2016 (Revision of ASME B31.3-2014) Process Piping ASME Code for Pressure Piping, B31 AN INTERNATIONAL PIPING CODE® --`,``,`,``,,,`,,``,```,,-`-``,```,,,`--- Copyright ASME International Licensee=PETROLEOS MEXICANOS 5948636 Provided by IHS Markit under license with ASME Not for Resale, 2018/3/6 01:51:58 No reproduction or networking permitted without license from IHS ASME B31.3-2016 (Revision of ASME B31.3-2014) Process Piping ASME Code for Pressure Piping, B31 --`,``,`,``,,,`,,``,```,,-`-``,```,,,`--- AN INTERNATIONAL PIPING CODE® Two Park Avenue • New York, NY • 10016 USA Copyright ASME International Licensee=PETROLEOS MEXICANOS 5948636 Provided by IHS Markit under license with ASME Not for Resale, 2018/3/6 01:51:58 No reproduction or networking permitted without license from IHS DateofIssuance:January31,2017 The next edition of this Code is scheduled for publication in 2018. This Code will become effective 6 months after the Date of Issuance. ASMEissueswrittenrepliestoinquiriesconcerninginterpretationsoftechnicalaspectsofthisCode. Interpretations, Code Cases, and errata are published on the ASME Web site under the Committee Pagesathttp://cstools.asme.org/astheyareissued.InterpretationsandCodeCasesarealsoincluded with each edition. ErratatocodesandstandardsmaybepostedontheASMEWebsiteundertheCommitteePagesto provide corrections to incorrectly published items, or to correct typographical or grammatical errors in codes and standards. Such errata shall be used on the date posted. The Committee Pages can be found at http://cstools.asme.org/. There is an option available to automaticallyreceiveane-mailnotificationwhenerrataarepostedtoaparticularcodeorstandard. ThisoptioncanbefoundontheappropriateCommitteePageafterselecting“Errata”inthe“Publication Information” section. ASMEistheregisteredtrademarkofTheAmericanSocietyofMechanicalEngineers. ThisinternationalcodeorstandardwasdevelopedunderproceduresaccreditedasmeetingthecriteriaforAmerican National Standards and it is an American National Standard. The Standards Committee that approved the code or standardwasbalancedtoassurethatindividualsfromcompetentandconcernedinterestshavehadanopportunityto participate. The proposed code or standard was made available for public review and comment that provides an opportunityforadditionalpublicinputfromindustry,academia,regulatoryagencies,andthepublic-at-large. ASMEdoesnot“approve,”“rate,”or“endorse”anyitem,construction,proprietarydevice,oractivity. ASMEdoesnottakeanypositionwithrespecttothevalidityofanypatentrightsassertedinconnectionwithany itemsmentionedinthisdocument,anddoesnotundertaketoinsureanyoneutilizingastandardagainstliabilityfor infringementofanyapplicableletterspatent,norassumeanysuchliability.Usersofacodeorstandardareexpressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, is entirelytheirownresponsibility. Participation by federal agency representative(s) or person(s) affiliated with industry is not to be interpreted as governmentorindustryendorsementofthiscodeorstandard. ASMEacceptsresponsibilityforonlythoseinterpretationsofthisdocumentissuedinaccordancewiththeestablished ASMEproceduresandpolicies,whichprecludestheissuanceofinterpretationsbyindividuals. Nopartofthisdocumentmaybereproducedinanyform, inanelectronicretrievalsystemorotherwise, withoutthepriorwrittenpermissionofthepublisher. THETThAweMoAEPmRaIeCrkrAicNAavnSCeOonASpuClolyeIcErr,iiieTggNYthhyettOwso©FfrYeMMo2srEee0kCcr1,vhH7eNaAdYnbNiyc1ICa0Al0LE1nE6gN-i5Gn9eI9Ne0ErsERS --`,``,`,``,,,`,,``,```,,-`-``,```,,,`--- PrintedinU.S.A. Copyright ASME International Licensee=PETROLEOS MEXICANOS 5948636 Provided by IHS Markit under license with ASME Not for Resale, 2018/3/6 01:51:58 No reproduction or networking permitted without license from IHS CONTENTS Foreword .............................................................................. xii Committee Roster ..................................................................... xiv Introduction ........................................................................... xviii Summary of Changes .................................................................. xx Chapter I Scope and Definitions..................................................... 1 300 General Statements ...................................................... 1 Chapter II Design ................................................................... 11 Part 1 Conditions and Criteria ................................................... 11 301 Design Conditions ....................................................... 11 302 Design Criteria .......................................................... 13 Part 2 Pressure Design of Piping Components .................................... 21 303 General .................................................................. 21 304 Pressure Design of Components .......................................... 21 Part 3 Fluid Service Requirements for Piping Components ......................... 31 305 Pipe ..................................................................... 31 306 Fittings, Bends, Miters, Laps, and Branch Connections .................... 31 307 Valves and Specialty Components ........................................ 33 308 Flanges, Blanks, Flange Facings, and Gaskets ............................. 33 309 Bolting .................................................................. 34 Part 4 Fluid Service Requirements for Piping Joints ............................... 34 310 General .................................................................. 34 311 Welded Joints ............................................................ 34 312 Flanged Joints ........................................................... 35 313 Expanded Joints ......................................................... 35 314 Threaded Joints .......................................................... 35 315 Tubing Joints ............................................................ 36 316 Caulked Joints ........................................................... 36 317 Soldered and Brazed Joints ............................................... 36 318 Special Joints ............................................................ 37 Part 5 Flexibility and Support .................................................... 37 319 Piping Flexibility ........................................................ 37 320 Analysis of Sustained Loads ............................................. 42 321 Piping Support .......................................................... 43 --`,``,`,``,,,`,,``,```,,-`-``,```,,,`--- 3C33P222ah352ratp6ter III MSGMSpyeaasentttceeeeirrrfmiiiaaacslllsPsR..ie—p..q.i.nu..Mgi..r..ieS.s.mcy..e..sel..tnle..atm..ns..es...o...u........s............................................................................................................................................................................................................................................... 4544478557 Chapter IV Standards for Piping Components.......................................... 59 326 Dimensions and Ratings of Components .................................. 59 Chapter V Fabrication, Assembly, and Erection........................................ 63 327 General .................................................................. 63 328 Welding and Brazing .................................................... 63 330 Preheating ............................................................... 70 331 Heat Treatment .......................................................... 72 332 Bending and Forming .................................................... 77 iii Copyright ASME International Licensee=PETROLEOS MEXICANOS 5948636 Provided by IHS Markit under license with ASME Not for Resale, 2018/3/6 01:51:58 No reproduction or networking permitted without license from IHS 333 Brazing and Soldering ................................................... 77 335 Assembly and Erection ................................................... 78 Chapter VI Inspection, Examination, and Testing....................................... 80 340 Inspection ............................................................... 80 341 Examination ............................................................. 80 342 Examination Personnel ................................................... 87 343 Examination Procedures .................................................. 87 344 Types of Examination .................................................... 87 345 Testing .................................................................. 89 346 Records ................................................................. 92 Chapter VII Nonmetallic Piping and Piping Lined With Nonmetals........................ 94 A300 General Statements ...................................................... 94 Part 1 Conditions and Criteria ................................................... 94 A301 Design Conditions ....................................................... 94 A302 Design Criteria .......................................................... 94 Part 2 Pressure Design of Piping Components .................................... 96 A303 General .................................................................. 96 A304 Pressure Design of Piping Components ................................... 96 Part 3 Fluid Service Requirements for Piping Components ......................... 97 A305 Pipe ..................................................................... 97 A306 Fittings, Bends, Miters, Laps, and Branch Connections .................... 97 A307 Valves and Specialty Components ........................................ 98 A308 Flanges, Blanks, Flange Facings, and Gaskets ............................. 98 A309 Bolting .................................................................. 98 Part 4 Fluid Service Requirements for Piping Joints ............................... 98 A310 General .................................................................. 98 A311 Bonded Joints in Plastics ................................................. 98 A312 Flanged Joints ........................................................... 99 A313 Expanded Joints ......................................................... 99 A314 Threaded Joints .......................................................... 99 A315 Tubing Joints ............................................................ 99 AAPAAAPaa33333rr11122tt6892156 FSCSFPSlpplyiaeepseeuxxitccinliebiikbafmgieiillclidsSitJtyPuoyJ.iipoanp.oipnt.infsnod.tNgrs.St..oSu...ny....pm....sp....toee....rtm....ta....ls.....li.....c............P......i......p......i......n......g........................................................................................................................................................................................................................................................................................................... 1111199000009910022 --`,``,`,``,,,`,,``,```,,-`-``,```,,,`--- Part 7 Materials ................................................................ 102 A323 General Requirements .................................................... 102 A325 Materials — Miscellaneous ............................................... 103 Part 8 Standards for Piping Components ......................................... 103 A326 Dimensions and Ratings of Components .................................. 103 Part 9 Fabrication, Assembly, and Erection ....................................... 104 A327 General .................................................................. 104 A328 Bonding of Plastics ...................................................... 104 A329 Fabrication of Piping Lined With Nonmetals .............................. 110 A332 Bending and Forming .................................................... 110 A334 Joining Nonplastic Piping ................................................ 110 A335 Assembly and Erection ................................................... 111 Part 10 Inspection, Examination, and Testing ...................................... 111 A340 Inspection ............................................................... 111 A341 Examination ............................................................. 112 A342 Examination Personnel ................................................... 112 iv Copyright ASME International Licensee=PETROLEOS MEXICANOS 5948636 Provided by IHS Markit under license with ASME Not for Resale, 2018/3/6 01:51:58 No reproduction or networking permitted without license from IHS A343 Examination Procedures .................................................. 113 A344 Types of Examination .................................................... 113 A345 Testing .................................................................. 113 A346 Records ................................................................. 113 Chapter VIII Piping for Category M Fluid Service ........................................ 114 M300 General Statements ...................................................... 114 Part 1 Conditions and Criteria ................................................... 114 M301 Design Conditions ....................................................... 114 M302 Design Criteria .......................................................... 114 Part 2 Pressure Design of Metallic Piping Components ............................ 114 M303 General .................................................................. 114 M304 Pressure Design of Metallic Components ................................. 114 Part 3 Fluid Service Requirements for Metallic Piping Components ................. 114 M305 Pipe ..................................................................... 114 M306 Metallic Fittings, Bends, Miters, Laps, and Branch Connections ............ 114 M307 Metallic Valves and Specialty Components ............................... 115 M308 Flanges, Blanks, Flange Facings, and Gaskets ............................. 115 M309 Bolting .................................................................. 116 Part 4 Fluid Service Requirements for Metallic Piping Joints ....................... 116 M310 Metallic Piping, General ................................................. 116 M311 Welded Joints in Metallic Piping ......................................... 116 M312 Flanged Joints in Metallic Piping ......................................... 116 M313 Expanded Joints in Metallic Piping ....................................... 116 M314 Threaded Joints in Metallic Piping ........................................ 116 M315 Tubing Joints in Metallic Piping .......................................... 116 M316 Caulked Joints ........................................................... 116 M317 Soldered and Brazed Joints ............................................... 116 M318 Special Joints in Metallic Piping .......................................... 116 Part 5 Flexibility and Support of Metallic Piping .................................. 116 M319 Flexibility of Metallic Piping ............................................. 116 M320 Analysis of Sustained Loads ............................................. 116 M321 Piping Support .......................................................... 116 Part 6 Systems ................................................................. 116 M322 Specific Piping Systems .................................................. 116 Part 7 Metallic Materials ........................................................ 117 M323 General Requirements .................................................... 117 M325 Materials — Miscellaneous ............................................... 117 Part 8 Standards for Piping Components ......................................... 117 M326 Dimensions and Ratings of Components .................................. 117 Part 9 Fabrication, Assembly, and Erection of Metallic Piping ...................... 117 M327 General .................................................................. 117 M328 Welding of Metals ....................................................... 117 M330 Preheating of Metals ..................................................... 118 M331 Heat Treatment of Metals ................................................ 118 M332 Bending and Forming of Metals .......................................... 118 M335 Assembly and Erection of Metallic Piping ................................ 118 Part 10 Inspection, Examination, Testing, and Records of Metallic Piping ............ 118 M340 Inspection ............................................................... 118 M341 Examination ............................................................. 118 M342 Examination Personnel ................................................... 118 M343 Examination Procedures .................................................. 118 M344 Types of Examination .................................................... 118 M345 Testing .................................................................. 118 M346 Records ................................................................. 118 v --`,``,`,``,,,`,,``,```,,-`-``,```,,,`--- Copyright ASME International Licensee=PETROLEOS MEXICANOS 5948636 Provided by IHS Markit under license with ASME Not for Resale, 2018/3/6 01:51:58 No reproduction or networking permitted without license from IHS Parts 11 Through 20, Corresponding to Chapter VII ................................... 118 MA300 General Statements ...................................................... 119 Part 11 Conditions and Criteria ................................................... 119 MA301 Design Conditions ....................................................... 119 MA302 Design Criteria .......................................................... 119 Part 12 Pressure Design of Nonmetallic Piping Components ........................ 119 MA303 General .................................................................. 119 MA304 Pressure Design of Nonmetallic Components ............................. 119 Part 13 Fluid Service Requirements for Nonmetallic Piping Components ............. 119 MA305 Pipe ..................................................................... 119 MA306 Nonmetallic Fittings, Bends, Miters, Laps, and Branch Connections ....... 119 MA307 Valves and Specialty Components ........................................ 119 MA308 Flanges, Blanks, Flange Facings, and Gaskets ............................. 119 MA309 Bolting .................................................................. 119 Part 14 Fluid Service Requirements for Nonmetallic Piping Joints .................... 119 MA310 General .................................................................. 119 MA311 Bonded Joints ............................................................ 119 MA312 Flanged Joints ........................................................... 119 MMMMMPMaAAAAAArt33333311111115345689 FETTCSPlupixhaepbepruxieciianlnbaiknagigdedllideFteJJdyooldJeiioaJxnnJoinitotnbissdintinslitSint.stsu..yN...p....po.....on.....r.....mt.....o.....e.....tfa.....Nl.....lo.....ic..n........mP.....ie.....p....t.ai.....nl.....lg.....ic...........P......i......p......in............g.............................................................................................................................................................................................................................. 111111122212220009000 --`,``,`,``,,,`,,``,```,,-`-``,```,,,`--- MA321 Piping Support .......................................................... 120 Part 16 Nonmetallic and Nonmetallic Lined Systems ................................ 120 MA322 Specific Piping Systems .................................................. 120 Part 17 Nonmetallic Materials ..................................................... 120 MA323 General Requirements .................................................... 120 Part 18 Standards for Nonmetallic and Nonmetallic Lined Piping Components ........ 120 MA326 Dimensions and Ratings of Components .................................. 120 Part 19 Fabrication, Assembly, and Erection of Nonmetallic and Nonmetallic Lined Piping ................................................................. 120 MA327 General .................................................................. 120 MA328 Bonding of Plastics ...................................................... 120 MA329 Fabrication of Piping Lined With Nonmetals .............................. 120 MA332 Bending and Forming .................................................... 120 MA334 Joining Nonplastic Piping ................................................ 120 MA335 Assembly and Erection ................................................... 120 Part 20 Inspection, Examination, Testing, and Records of Nonmetallic and Nonmetallic Lined Piping ............................................... 120 MA340 Inspection ............................................................... 120 MA341 Examination ............................................................. 120 MA342 Examination Personnel ................................................... 121 MA343 Examination Procedures .................................................. 121 MA344 Types of Examination .................................................... 121 MA345 Testing .................................................................. 121 MA346 Records ................................................................. 121 Chapter IX High Pressure Piping...................................................... 122 K300 General Statements ...................................................... 122 Part 1 Conditions and Criteria ................................................... 122 K301 Design Conditions ....................................................... 122 K302 Design Criteria .......................................................... 123 vi Copyright ASME International Licensee=PETROLEOS MEXICANOS 5948636 Provided by IHS Markit under license with ASME Not for Resale, 2018/3/6 01:51:58 No reproduction or networking permitted without license from IHS Part 2 Pressure Design of Piping Components .................................... 125 K303 General .................................................................. 125 K304 Pressure Design of High Pressure Components ........................... 125 Part 3 Fluid Service Requirements for Piping Components ......................... 129 K305 Pipe ..................................................................... 129 K306 Fittings, Bends, and Branch Connections ................................. 129 K307 Valves and Specialty Components ........................................ 129 K308 Flanges, Blanks, Flange Facings, and Gaskets ............................. 129 K309 Bolting .................................................................. 130 Part 4 Fluid Service Requirements for Piping Joints ............................... 130 K310 General .................................................................. 130 K311 Welded Joints ............................................................ 130 K312 Flanged Joints ........................................................... 130 K313 Expanded Joints ......................................................... 130 K314 Threaded Joints .......................................................... 130 K315 Tubing Joints ............................................................ 131 K316 Caulked Joints ........................................................... 131 K317 Soldered and Brazed Joints ............................................... 131 K318 Special Joints ............................................................ 131 Part 5 Flexibility and Support .................................................... 131 K319 Flexibility ................................................................ 131 K321 Piping Support .......................................................... 131 Part 6 Systems ................................................................. 132 K322 Specific Piping Systems .................................................. 132 Part 7 Materials ................................................................ 132 K323 General Requirements .................................................... 132 K325 Miscellaneous Materials .................................................. 137 Part 8 Standards for Piping Components ......................................... 137 K326 Requirements for Components ........................................... 137 Part 9 Fabrication, Assembly, and Erection ....................................... 137 K327 General .................................................................. 137 K328 Welding ................................................................. 137 K330 Preheating ............................................................... 141 K331 Heat Treatment .......................................................... 141 K332 Bending and Forming .................................................... 141 K333 Brazing and Soldering ................................................... 142 K335 Assembly and Erection ................................................... 142 Part 10 Inspection, Examination, and Testing ...................................... 142 K340 Inspection ............................................................... 142 K341 Examination ............................................................. 142 K342 Examination Personnel ................................................... 144 --`,``,`,``,,,`,,``,```,,-`-``,```,,,`--- KKKKCUh33333a44440p34560ter X HETLRGyxeieegpaacnhkomeersrPTidanuoeslarfsiStttEii.tyonax.ngtP.ae.miPmp..r..iineno..ngca..te...tsid...o...un....r....e.....s................................................................................................................................................................................................................................................................................................................. 111111444444445788 Part 1 Conditions and Criteria ................................................... 148 U301 Design Conditions ....................................................... 148 Part 2 Pressure Design of Piping Components .................................... 148 Part 3 Fluid Service Requirements for Piping Components ......................... 148 U306 Fittings, Bends, Miters, Laps, and Branch Connections .................... 148 U307 Valves and Specialty Components ........................................ 148 U308 Flanges, Blanks, Flange Facings, and Gaskets ............................. 148 vii Copyright ASME International Licensee=PETROLEOS MEXICANOS 5948636 Provided by IHS Markit under license with ASME Not for Resale, 2018/3/6 01:51:58 No reproduction or networking permitted without license from IHS Part 4 Fluid Service Requirements for Piping Joints ............................... 149 U311 Welded Joints ............................................................ 149 U314 Threaded Joints .......................................................... 149 U315 Tubing Joints ............................................................ 149 Part 5 Flexibility and Support .................................................... 149 U319 Piping Flexibility ........................................................ 149 Part 6 Systems ................................................................. 149 Part 7 Metallic Materials ........................................................ 149 Part 8 Standards for Piping Components ......................................... 150 Part 9 Fabrication, Assembly, and Erection ....................................... 150 U327 General .................................................................. 150 U328 Welding ................................................................. 150 U330 Preheating ............................................................... 150 U331 Heat Treatment .......................................................... 150 U332 Bending and Forming .................................................... 150 U333 Brazing and Soldering ................................................... 150 U335 Assembly and Erection ................................................... 150 Part 10 Inspection, Examination, and Testing ...................................... 152 U340 Inspection ............................................................... 152 U341 Examination ............................................................. 152 U342 Examination Personnel ................................................... 153 U343 Examination Procedures .................................................. 153 U344 Types of Examination .................................................... 153 U345 Testing .................................................................. 153 U346 Records ................................................................. 154 Part 11 High Purity Piping in Category M Fluid Service ............................. 154 UM300 General Statements ...................................................... 154 UM307 Metallic Valves and Specialty Components ............................... 154 UM322 Specific Piping Systems .................................................. 154 UM328 Welding of Materials ..................................................... 154 UM335 Assembly and Erection of Metallic Piping ................................ 154 UM341 Examination ............................................................. 154 UM345 Testing .................................................................. 154 Figures 300.1.1 Diagram Illustrating Application of B31.3 Piping at Equipment ............ 3 302.3.5 Stress Range Factor, f .................................................... 18 304.2.1 Nomenclature for Pipe Bends ............................................ 22 304.2.3 Nomenclature for Miter Bends ........................................... 22 304.3.3 Branch Connection Nomenclature ........................................ 25 304.3.4 Extruded Outlet Header Nomenclature ................................... 27 304.5.3 Blanks ................................................................... 30 319.4.4A Moments in Bends ....................................................... 41 319.4.4B Moments in Branch Connections ......................................... 41 323.2.2A Minimum Temperatures Without Impact Testing for Carbon Steel Materials .............................................................. 50 323.2.2B Reduction in Lowest Exemption Temperature for Steels Without Impact Testing ................................................................ 52 328.3.2 Typical Backing Rings and Consumable Inserts ........................... 65 328.4.2 Typical Butt Weld End Preparation ....................................... 65 328.4.3 Trimming and Permitted Misalignment ................................... 65 328.4.4 Preparation for Branch Connections ...................................... 66 328.5.2A Fillet Weld Size .......................................................... 67 328.5.2B Typical Details for Double-Welded Slip-On and Socket Welding Flange Attachment Welds ..................................................... 67 viii CPNrooop vryeidrpiegrodhd tb uAycS tIiHMoSnE oMInr atnere--`,``,`,``,,,`,,``,```,,-`-``,```,,,`---krntitw auotnirokdnienargl l ipceernmseit twedit hw AithSoMuEt license from IHS LN iocet nfosre Ree=sPaEleT,R 2O0L1E8/O3/S6 M01E:X51IC:5A8NOS 5948636 328.5.2C Minimum Welding Dimensions for Socket Welding Components Other Than Flanges .......................................................... 67 328.5.4A Typical Welded Branch Connections ...................................... 68 328.5.4B Typical Welded Branch Connections ...................................... 68 328.5.4C Typical Welded Branch Connections ...................................... 68 328.5.4D Acceptable Details for Branch Attachment Welds ......................... 68 328.5.4E Acceptable Details for Branch Attachment Suitable for 100% Radiography .......................................................... 68 328.5.4F Acceptable Details for Integrally Reinforced Branch Connections .......... 69 328.5.5 Typical Fabricated Laps .................................................. 71 335.3.3 Typical Threaded Joints Using Straight Threads ........................... 79 341.3.2 Typical Weld Imperfections .............................................. 85 A328.5 Typical Plastic Piping Joints .............................................. 109 K323.3.3 Example of an Acceptable Impact Test Specimen .......................... 135 K328.4.3 Pipe Bored for Alignment: Trimming and Permitted Misalignment ........ 140 K328.5.4 Some Acceptable Welded Branch Connections Suitable for 100% Radiography .......................................................... 140 U304.5.3 Blanks ................................................................... 149 U335.7.1 Face Seal Joints .......................................................... 151 U335.8A Hygienic Clamp Joint Assembly .......................................... 151 U335.8B Hygienic Clamp Types ................................................... 152 U335.8C Hygienic Ferrules ........................................................ 152 Tables 300.4 Status of Appendices in B31.3 ............................................ 10 302.3.3C Increased Casting Quality Factors, E ..................................... 16 c 302.3.3D Acceptance Levels for Castings ........................................... 16 302.3.4 Longitudinal Weld Joint Quality Factor, E ................................ 17 j 302.3.5 Weld Joint Strength Reduction Factor, W .................................. 20 304.1.1 Values of Coefficient Y for t < D⁄6 ........................................ 22 304.4.1 BPV Code References for Closures ........................................ 29 308.2.1 Permissible Sizes/Rating Classes for Slip-On Flanges Used as Lapped Flanges ................................................................ 33 314.2.1 Minimum Thickness of External Threaded Components ................... 36 323.2.2 Requirements for Low Temperature Toughness Tests for Metals ........... 48 323.2.2A Tabular Values for Minimum Temperatures Without Impact Testing for Carbon Steel Materials ................................................. 51 323.2.2B Tabular Values for Reduction in Lowest Exemption Temperature for Steels Without Impact Testing .......................................... 53 323.3.1 Impact Testing Requirements for Metals .................................. 55 323.3.4 Charpy Impact Test Temperature Reduction .............................. 56 323.3.5 Minimum Required Charpy V-Notch Impact Values ....................... 57 326.1 Component Standards ................................................... 60 330.1.1 Preheat Temperatures .................................................... 71 331.1.1 Postweld Heat Treatment ................................................. 73 331.1.2 Alternate Postweld Heat Treatment Requirements for Carbon and Low Alloy Steels, P-Nos. 1 and 3 ........................................... 74 33AAA4333311222..31333.....23424...232C AERRRxeeecEPeccqcoomixeupmmpaipermtemmta.iminon.eecn.ennae.nstdd.itCoeet.soddnr.fi.oMtTT..eree..ramm..iLna..odpp..fw..aeeo..rrtro..aaT..Wrtteuu..ym..errP..eelpd..oeLL..ssr..iita—mm..wt..uiie..ttVrl..ssed..isff..TooHu..orra..eul..RTag..athe..hnieT..nndr..refme..osRa..rsot..acmp..Ted..ldeeia..osns..tTgtts..irh..cafe...sopr...rUmh......Nisoc...eos...de...nt...mat...isn...e...gt...a...lRs...e...s....i....n.................... 1187002533 --`,``,`,``,,,`,,``,```,,-`-``,```,,,`--- Linings ................................................................ 104 A326.1 Component Standards ................................................... 105 A341.3.2 Acceptance Criteria for Bonds ............................................ 112 ix Copyright ASME International Licensee=PETROLEOS MEXICANOS 5948636 Provided by IHS Markit under license with ASME Not for Resale, 2018/3/6 01:51:58 No reproduction or networking permitted without license from IHS

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